Sound

Noise Pollution

If anti-noise is produced by the headphones can a person hear other people, music, etc.—sounds that aren’t “noise”?

The objective of active noise cancellation is to cancel out the noise waveform by producing anti-noise to interfere with the original noise pattern. Since the result is less noise, other sounds are easier to hear. ANC technology is now available for consumers in headsets that reduce noise and allows for easier communication in loud environments. As a result of this new technology, factory workers and helicopter pilots can communicate more easily, and their amount of stress due to noise pollution should be reduced. Airline passengers can listen to music through ANC headphones while noise from the airplane is cancelled or reduced.